Effect of End Support Conditions on the Vibrational Performance of Cross-Laminated Timber Floors

https://research.thinkwood.com/en/permalink/catalogue209
Year of Publication
2014
Topic
Acoustics and Vibration
Material
CLT (Cross-Laminated Timber)
Application
Floors
Author
Maldonado, Saul
Chui, Ying Hei
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Floors
Topic
Acoustics and Vibration
Keywords
End Support
Natural Frequency
Damping
Static Deflection
Finite Element Model
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
This study focuses on the vibrational behaviour of 3, 5 and 7-layer cross-laminated timber (CLT) plates supported on two sides with different support conditions. Three end support setups are proposed; 1) top load over the two supported edges, 2) direct fastening to support using self-tapping screws, 3) steel angle bracket support. The measured response parameters are natural frequencies, damping, and static deflection under a point load. The rotational stiffness with load, screws and steel angle brackets will be characterized through static tests. In addition, the effect of the span is studied by varying the test span and repeating the vibration and deflection tests. The laboratory tests will be supplemented with analytical modelling. The expected outcome is the development of approaches to more accurately calculate the natural frequency and static deflection under a point load, which can account for the influence of common support conditions encountered in service.
Online Access
Free
Resource Link
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